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Segment Information and Major Customers Summary of Operating Results by Segment (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)
Segment Reporting Information [Line Items]
Revenue	$ 388,225	$ 308,632	$ 279,271
Gross profit	216,286	166,657	143,972
Operating income (loss)	38,220	10,528	11,317
Depreciation and amortization	$ 33,839	20,877	19,299
Number of operating segments | segment	6
Number of reportable segments | segment	2
IoT Products & Services
Segment Reporting Information [Line Items]
Revenue	$ 297,645	264,173	249,530
Gross profit	160,117	144,472	129,349
Operating income (loss)	41,562	18,212	27,216
Depreciation and amortization	$ 13,974	13,109	11,521
Number of operating segments | segment	4
IoT Solutions
Segment Reporting Information [Line Items]
Revenue	$ 90,580	44,459	29,741
Gross profit	56,169	22,185	14,623
Operating income (loss)	(3,342)	(7,684)	(15,899)
Depreciation and amortization	$ 19,865	$ 7,768	$ 7,778
Number of operating segments | segment	2

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